the purpose of fuses is to disable .................that is drawing too much current. this prevents a fire and protects the components that the circuit serves.

Answer:

It keeps them in place because they are being pulled towards the sun and are also moving fast enough to go around it

Explanation:

Hi there!

Recall the equation for Spring Potential Energy:
\(\large\boxed{PE = \frac{1}{2}kx^2}\)

PE = Potential Energy (J)
k = Spring Constant (N/m)
x = displacement from equilibrium (m)

Plug in the givens:

\(PE = \frac{1}{2}(200)(0.02^2) = 0.04 J\)

All of the potential energy will be converted to kinetic energy when the spring is released, so:
\(\large\boxed{KE = 0.04 J}\)

Answer:

0.04 J

Explanation:

The force that accelerates the box upwards is shown in the image attached here.

We know that the force that acts on a liquid would be two fold. One is the weight of the liquid and the other is the upthrust that acts to tend to lift the box up as it is immersed in the liquid that has been shown.

We can be able to use the force diagram to show the interaction of the object in the fluid and this is clear from the image that has been attached to the answer that we have here.

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When the socks are rubbed on the carpet, loosely held electrons are transferred from the carpet to the socks.

Electrons move from one body to another when two distinct insulating materials are rubbed against one another. This phenomenon of charge transfer is known as is known as charging by friction.

Electrons are the carriers of electric charges. We transfer electrons from the carpet to the wool socks as we rub them against the carpet.

The additional electrons then move from our body to the metal, creating a spark, when we touch a doorknob made of metal, for instance.

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The calculate the total current through the circuit, we first need to understand the concept of series circuits.  Therefore, the total current through the circuit is 0.15 amps or 150 milliamps.

The four light bulbs are connected in series, which means that the current flowing through each bulb is the same. The total resistance of the circuit can be calculated by adding up the resistance of each bulb (10 ohms each) which gives us a total resistance of 40 ohms. Using Ohm's law, we can calculate the current flowing through the circuit by dividing the voltage of the battery (6.0 V) by the total resistance (40 ohms). This gives us a total current of 0.15 amps or 150 milliamps. Therefore, the total current through the circuit is 0.15 amps or 150 milliamps.

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deloer je n'ai pas mla reponse a tas question

Therefore, the statement that "X-ray telescope mirrors are very similar to optical telescope mirrors" is FALSE since they are used for capturing and detecting different wavelengths of light. Optical telescopes detect and focus visible light while X-ray telescopes capture and detect high-energy X-ray radiation.

X-ray telescope mirrors are not very similar to optical telescope mirrors. The two are different because they have different types of wavelengths of light they detect. While optical telescopes reflect and focus visible light to produce images, X-ray telescopes capture and detect high-energy X-ray radiation that is outside the visible spectrum.

What are X-ray telescopes?

X-ray telescopes are scientific instruments that are designed to observe objects in space that emit X-ray radiation. The mirrors of X-ray telescopes are made of a special type of glass or metal that can reflect and focus X-rays in the same way that optical telescopes focus and reflect light. The main function of X-ray telescopes is to gather high-energy X-rays that are emitted by objects in space such as black holes, neutron stars, and other exotic celestial bodies. They can also be used to study the X-ray properties of galaxies, stars, and other astronomical objects.

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This motion of the balloon is an example of buoyancy, which is the upward force exerted by a fluid on an object immersed in it.

When the balloon is neutrally buoyant, it means that the weight of the balloon and the weights attached to it is equal to the weight of the water displaced by the balloon.

If you push the balloon down to a greater depth and then release it, the balloon will rise back up to its original position.

This is because the balloon is still partially inflated and contains air, which is less dense than water. When you push the balloon down, the water pressure compresses the air in the balloon, causing it to become smaller in size.

When you release the balloon, the compressed air expands and pushes the balloon upwards towards the surface of the water.

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Answer:

Kinetic energy= 114.9J

Explanation:

Greetings !

Given values :-

mass= 1.9kg

height=2.6m

velocity= 11m/s

displacement (d)= 0.075m

Required value :-

Kinetic energy (KE)

Solution :-

Firstly, recall the Kinetic energy equation

\(ke = \frac{1}{2} mv {}^{2} \)

substitute known variables into the equation

\(ke = \frac{1}{2} (1.9)(11) {}^{2} \)

solve for Kinetic energy

\(ke = 114.9j\)

Hope it helps!!!

The coefficient of kinetic friction between the calculus book and the floor in the pickup game of dorm shuffleboard is approximately 0.183. This value represents the ratio of the net force acting on the book, which is the difference between the applied force from the broom and the force of friction, to the weight of the book.

To determine the coefficient of kinetic friction between the book and the floor, we can use the following equation:

μk = (F_net - F_applied) / (m * g),

where μk is the coefficient of kinetic friction, F_net is the net force acting on the book, F_applied is the applied force from the broom, m is the mass of the book, and g is the acceleration due to gravity.

In this scenario, the applied force from the broom is 49 N, and the mass of the book is 4.9 kg. The net force can be calculated using Newton's second law, which states that F_net = m * a, where a is the acceleration.

To find the acceleration, we can use the equation:

\(v^2\) = \(u^2\) + 2 * a * s,

where v is the final velocity, u is the initial velocity (0 m/s in this case since the book starts from rest), a is the acceleration, and s is the distance traveled.

Plugging in the given values, we have:

\((1.4 m/s)^2\) = \((0 m/s)^2\) + 2 * a * 0.90 m.

Simplifying the equation gives us:

1.96\(m^2\)/\(s^2\)= 1.8 m * a.

Solving for a, we find:

a = 1.96\(m^2\)/\(s^2\) / 1.8 m = 1.0889 \(m/s^2\).

Now we can calculate the net force:

F_net = m * a = 4.9 kg * 1.0889\(m/s^2\) = 5.335 N.

Substituting the values into the equation for the coefficient of kinetic friction:

μk = (F_net - F_applied) / (m * g) = (5.335 N - 49 N) / (4.9 kg * 9.8 \(m/s^2\)) ≈ 0.183.

Therefore, the coefficient of kinetic friction between the book and the floor is approximately 0.183.

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Answer: A. When half the parent nuclei in a sample have become daughter nuclei

Explanation:

Answer: 4.8 seconds

Explanation:

d=r*t

6.5=1.25*t

6.5/1.25= 4.8

Hope this helps! :)

Answer:

Its d 3.74 x 10-8N

Explanation:

Answer: 3.74 x 10-8 N

Explanation:

Ok so it usually includes the evaluation of symptom and disorder severity, patterns of symptoms over time number, frequency, and duration of episodes, and the patient's strengths and weaknesses.

Answer:

Two coins.

Explanation:

place the at the sharp point

The features the scientist is likely to see are:

Based on the fact that a coral reef is an underwater ecosystem that contains different animals and species, they contain a colony of coral polyps.

This refers to the underwater ecosystem that contains different animals and species.

Hence, we can see that based on the fact that a scientist is studying the outer reef section of a coral reef, he would see the distinct characteristics of the coral and these are the:

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Answer:

10096

Explanation:

Please mark me brainlist

Answer: 4.192 years

Explanation:

Answer:

Objects; waves.

Explanation:

Waves interact with objects and other waves. Thus, waves are used on objects such as mobile phones and can be transformed from one form to another.

There are various types of waves in our physical environment such as gamma rays, x-rays, ultraviolet waves, radio waves etc.

Radio waves can be defined as an electromagnetic wave that has its frequency ranging from 30 GHz to 300 GHz and its wavelength between 1mm and 3000m. Therefore, radio waves are a series of repetitive valleys and peaks that are typically characterized of having the longest wavelength in the electromagnetic spectrum.

Basically, as a result of radio waves having long wavelengths, they are mainly used in long-distance communications such as the carriage and transmission of data. Some examples of communication technologies that uses radio waves are radio set, mobile phones, television etc.

Answer:

Direct relation

Explanation:

When an object of mass m is moving with some velocity v, it will have kinetic energy. It is possessed by an object whenever an object is in motion. It can be given by the below formula.

\(E_k=\dfrac{1}{2}mv^2\)

It is very clear that the kinetic energy of an object is directly proportional to its mass. When the mass increases, its kinetic energy increases directly.

The centripetal acceleration of the car is 3.56 m/s².

The centripetal acceleration of an object moving in a circular path is given by the formula:

a = v²/r

where "v" is the speed of the object, and "r" is the radius of the circular path.

In this problem, the car is moving at a constant speed of 14 m/s around a circle with radius 55 m. Plugging in the values, we get:

a = (14 m/s)² / 55 m = 3.56 m/s²

Therefore, the centripetal acceleration of the car is 3.56 m/s².

centripetal acceleration is the rate at which a body moves through a circle. Due to the fact that velocity is a vector quantity (i.e., it has both a magnitude, the speed, and a direction), when a body travels in a circle, its direction is continually changing, which causes a change in velocity, which results in an acceleration. The circle's centre is where the acceleration is pointed radially. The centripetal acceleration, denoted by the symbol ac, has a magnitude equal to the square of the body's velocity along the curve divided by the radius of the circle, denoted by the symbol r. This is also known as the formula ac = v2/r. Units for centripetal acceleration are metres per second squared. The force causing this acceleration is known as the centripetal force and is also directed towards the centre of the circle.

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Given that,

Mass of water = 1.26 kg

Latent heat of vaporization of water \(L=2.26\times10^{6}\ J/kg\)

We need to calculate the latent heat

Using formula of latent heat

\(Q=mL\)

Where, Q = energy

m = mass

L = latent heat of vaporization

Put the value into the formula

\(Q=1.26\times2.26\times10^{6}\)

\(Q=2847600\ J\)

\(Q=2.84\times10^{6}\ J\)

The temperature changes liquid to steam.

So, The temperature will be increases.

Hence, The latent heat is \(2.84\times10^{6}\ J\) and temperature increases.

Answer:

latent heat = 2.84 x 10^6

and the temperature increase

Explanation:

The magnitude of the acceleration of the ball  applied at the bottom of the circle is expressed as FTension-FGravity/M.

You can write it down as FC = mv2 /r.

The centripetal force in a moving object attached to a string is equal to the product of the object's mass (mg) and the string tension (T).

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Here the focal length of the convex mirror as -12 cm, a light bulb with a diameter of 6 cm is placed 60 cm from the mirror. Hence, the image distance is -60 cm, and the image height is 6 cm.

To find the image distance and height, we will use the mirror formula for a convex mirror, which is given as follows;1/f = 1/v + 1/u. Where, f = focal length of the convex mirror;

v = the image distance;

u = the object distance

If the object distance is positive, it means the object is placed in front of the mirror, and if it is negative, it means the object is placed behind the mirror. The focal length of a convex mirror is always negative, as given above.

Therefore, u = -60 cm and f = -12 cm.

Plugging in the values in the mirror formula, we get:1/-12 = 1/v + 1/-60=> -5/60 = 1/v - (1/60) => -5/60 = (60 - v)/60=> v = -300/5= -60 cm

The image distance is -60 cm, which means the image is virtual and erect. The negative sign indicates that the image is formed behind the mirror.

To find the image height, we use the magnification formula:

m = -v/u= -(-60)/(-60)= 1

The magnification is 1, which means the image is of the same size as the object. The height of the light bulb is 6 cm, so the height of the image will also be 6 cm.

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If A rope is vibrating at a high frequency. The length of the rope is 2.40 meters. the wavelength of the wave is 1.60 meters.

Wavelength is the distance between two consecutive points of a wave that are in phase, such as two adjacent crests or troughs. It represents the spatial extent of one complete cycle of the wave.

In this case, since we have one full wave and one-half wave, the total distance covered by the wave is equivalent to one and a half wavelength.

The length of the rope is given as 2.40 meters, which corresponds to one and a half wavelengths. To find the wavelength of the wave, we can divide the total length by the number of wavelengths:

Wavelength = Total length / Number of wavelengths

In this case, the total length is 2.40 meters, and the number of wavelengths is one and a half (1.5):

Wavelength = 2.40 meters / 1.5 = 1.60 meters

Therefore, the wavelength of the wave is 1.60 meters.

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Answer:

Antimony is metalloid

Explanation:

From the properties of the metals given, we can conclude that antimony is pure a metalloid.

A metalloid has the properties of metals and non-metals.

Answer:

Its stage is 0.5 meters per second

Explanation:

This is because 2 divided by 4 equals 0.5

Answer:

orce or acceleration b. Ms. Sunderland finally decided to take this seriously and put both hands on the rope and applied a 1000 N force to the left, while Jared and James still struggled with their 300 N force to the right. What is ... 150 more force. 10. During 5th period Dylan resisted the forces applied by her classmates in a ...

Explanation:

The average force on the puck by the stick is 448 N

To find the average force on the hockey puck, we can use the impulse-momentum theorem:

Impulse = Change in momentum

The impulse on the puck can be calculated as:

Impulse = mass x change in velocity
Impulse = 0.16 kg x (9 m/s - (-5 m/s))
Impulse = 0.16 kg x 14 m/s
Impulse = 2.24 N*s

The change in velocity is negative because the puck is moving in the opposite direction after the impact.

The impulse on the puck is equal to the average force multiplied by the time of contact:

Impulse = average force x time
2.24 N*s = average force x 0.005 s
average force = 2.24 N*s / 0.005 s
average force = 448 N

Therefore, the average force is 448 N.

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Answer:

Explanation:

NEWTON'S FIRST LAW OF MOTION:

a body continues its state of rest or of uniform motion in a straight line provided no net force acts on it. Fnet=0

NEWTON'S SECOND LAW OF MOTION:

when a net force acts on a body it produces acceleration in the body which is directly proportional to the magnitude of the net force and inversely to the mass of the body.F=ma

NEWTON'S THIRD LAW OF MOTION:

to every action there is always an equal but opposite reaction.

Answer:

Newton’s laws of motion can be summarized as follows:

An object will remain at rest, or in a uniform, straight-line motion if moving, unless an external force acts upon it.

Force equals change in momentum per change in time. For an object with constant mass, force equals mass times acceleration.

For every action, there is an equal and opposite reaction.

In Depth:

A rock resting on level ground won’t suddenly start moving unless you push it. This is Newton’s first law, which introduces the principle of inertia. Inertia tells us that objects at rest stay at rest, and objects in motion stay in motion at a constant velocity (speed in one direction). When a force acts on the object, it changes its behavior.

For example, when you push the rock along the ground, you apply an external force that causes the rock to break out of inertia and begin moving. When you throw the rock through the air, the force of gravity acts upon it and slows it down, pulling it back to earth. If you threw that rock in outer space with no external force of gravity acting upon it, the flying rock would travel indefinitely forward at constant velocity because of inertia.

Force (F) equals mass (m) times acceleration (a). An object’s mass is the amount of matter it contains. An object’s acceleration is its change in velocity—whether the object is speeding up or slowing down as it moves.

If this seems complicated, just think about how everyday objects react to force. It’s easier to push a soccer ball a certain distance than it is to push a car that same distance. That’s because the soccer ball has much less mass than the car, so it requires less force to create the same amount of acceleration.

A rocket has to fire its engines forcefully to overcome gravity and propel itself into outer space. The force of gas propelling downwards creates a reaction that pushes the rocket in the opposite direction with equal force. This is Newton’s third law: every action has an equal and opposite reaction.

As a result of Newton’s third law, all forces come in pairs. When you push against solid ground with your foot, the ground doesn’t fly off —it pushes back against you. This law helps us understand how objects with different forces interact.